Chateau St Jean was founded in 1973 and is one of the most recognizable Sonoma Valley wineries. The winery sources many of its grapes from some of the best vineyards in Sonoma County. They are most famous for Chardonnay and Cabernet Sauvignon, but produce many other varietals.

In 1850, Jacob Gundlach left Germany to immigrate to America. Upon arrival in San Francisco, he immediately founded the Bavaria Brewery. Along with Emil Dresel, Gundlach bought over 400 acres of land in Sonoma Valley.

Originally established in 1974 in Windsor, Landmark Vineyards was purchased in 1989 by Damaris Deer Etheridge. Etheridge, the great, great, granddaughter of the American agricultural machinery manufacturer John Deere, relocated the vineyard to its present day home in Kenwood, Sonoma.

Valley of the Moon Winery has a long history of wine production in Sonoma County. In the 1863, George Whitman began planting grapes and built a winery on the property. At his peak, he was producing 50,000 gallons of wine and 2,000 gallons of brandy a year.